CN113194006A - RSSP-I protocol-based test method - Google Patents
RSSP-I protocol-based test method Download PDFInfo
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- CN113194006A CN113194006A CN202110332992.8A CN202110332992A CN113194006A CN 113194006 A CN113194006 A CN 113194006A CN 202110332992 A CN202110332992 A CN 202110332992A CN 113194006 A CN113194006 A CN 113194006A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
Abstract
The invention relates to a test method, belongs to the technical field of networks, and particularly relates to a test method based on an RSSP-I protocol. The invention checks whether the protocol implementation meets the design requirements or not by analyzing the test process; in the test method, various fault modes in the protocol can be comprehensively simulated, and the processing process of the protocol in the test fault mode meets the requirements; the test method can simulate the use scene of multiple users, realize the mutual communication among the multiple clients, and the test protocol meets the performance requirement.
Description
Technical Field
The invention relates to a test method, belongs to the technical field of networks, and particularly relates to a test method based on an RSSP-I protocol.
Background
When data is transmitted in a network transmission system, there may be threats: data frame repetition, data frame loss, data frame insertion, data frame out-of-order, data frame error, data frame transmission timeout.
To reduce these threat risks, the RSSP-I protocol based on the UDP/IP protocol stack employs a protection algorithm designed from the receiving end perspective, requiring the receiving end to have to check the received data information as follows: the source information of the sending end, the correctness of the information frame, the timeliness of the information frame and the correctness of the information frame sequence.
The RSSP-I protocol adopts the measures of serial number, timestamp, overtime, destination and original address identification, feedback message, double check and the like, and can effectively protect the threats of repetition, loss, insertion, error sequence, error code and delay in a network transmission system. And testing the RSSP-I protocol, establishing a plurality of simulated clients, and calling an interface function provided by the protocol module by the clients. The client end simulates and packs normal or abnormal data messages, the data messages are sent to the opposite end client end through the network, and the opposite end client end analyzes, processes and responds to the received data messages. And through a series of data message interaction processes of the two clients, whether the protocol module meets the development requirement of the RSSP-I protocol is verified. The RSSP-I protocol test can simulate the simultaneous RSSP-I protocol test among a plurality of different types of clients by adopting a graphical method. The client sides can simultaneously simulate normal and various abnormal data message sending without mutual influence. Meanwhile, the test result is presented in a mode of combining pictures and texts, so that the test result can be visually analyzed.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The invention mainly aims to solve the technical problems in the prior art and provides a test method based on an RSSP-I protocol. The method can simulate normal frames, frame repetition, frame insertion, frame loss, frame error sequence and frame overtime in communication transmission, can inject interference data into a source address, a destination address, a message type, a sequence number, a timestamp, a CRC (cyclic redundancy check) code and the like in a data frame, can process communication data of a plurality of clients at the same time, and can set the processing period of each client to be different. Through the performance test of the protocol module, the performance indexes of the protocol implementation, such as execution speed, throughput and concurrency, can be detected.
In order to solve the problems, the scheme of the invention is as follows:
a testing method based on RSSP-I protocol includes:
the method comprises the steps of initialization, namely starting at least two client sides of types corresponding to starting parameters according to the starting parameters, testing the client sides to call a protocol initialization interface function, initializing a protocol, and after the initialization is successful, acquiring corresponding safe channel parameters and setting the client sides to be in a master mode by the client sides;
a time sequence correction step, wherein the first test client sends real-time safety data RSD to the second test client; the second testing client side calls a protocol analysis interface function to analyze the real-time safety data, and when the second testing client side detects that the time sequence of the current safety data message exceeds a preset tolerance range, the second testing client side sends a time sequence correction request message SSE to the first testing client side; after receiving the timing correction request message SSE, the first test client calls a protocol interface function to process and sends a timing correction response message SSR to the second test client; after receiving the timing correction response message SSR, the second test client calls a protocol interface function to process so as to obtain the latest communication timing sequence;
and an interference test step, namely injecting interference into the data message sent by at least one test end and testing the robustness of the protocol module.
Preferably, in the interference test step, the SID or SINIT or DATAVRER of the data sent by the first test client is modified, and when the second test client receives the data packet, the timing check is incorrect, and the packet is considered to be invalid; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
Preferably, in the interference test step, the message type, the source address or the destination address of the data message sent by the first test client is modified, and when the second test client receives the data message, the message is verified to be an error message, and the message is an invalid message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
Preferably, in the interference test step, the first test client sends the repeated data of the data message simulation frame, and the second test client does not process the message when receiving the repeated message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
Preferably, in the interference test step, the data packet simulation frame sent by the first test client is lost, and the second test client cannot receive the data packet information at intervals of one period; and after the message is recovered to be normal, the second test client normally receives and processes the message.
Preferably, in the interference test step, the first test client sends a data packet simulation frame insertion, and when the second test client receives the data packet, the timing sequence check is wrong, and the packet is considered to be invalid; and the second testing client processes the subsequent messages according to the time sequence recovery flow.
Preferably, in the interference test step, the first test client sends the data packet to simulate frame misordering, and when the second test client receives the data packet, if the sequence number value of the misordered packet is within the tolerance range, the misordered packet is not processed, otherwise, the misordered packet is processed according to the time sequence recovery process.
Preferably, in the interference test step, the first test client sends the data message when the simulation is over time, and the second test client does not receive the data message information within a period of time; and if the message is recovered within the tolerance time range, the second testing client processes the subsequent message according to the correct time sequence, otherwise, the subsequent message is processed according to the time sequence recovery process.
Preferably, the RSSP-I protocol-based test method includes N test clients, where in the time sequence correction step, the first test client sends data to the remaining N test clients, and after receiving the data, the N test clients perform time sequence check on the data message, and when the check fails, send a time sequence check request message to the first test client; after receiving the time sequence correction request messages sent by the N clients, the first test client sends time sequence correction response messages to the N clients; after receiving the time sequence correction response message, the N clients update the latest communication time sequence; and then the first test client and the rest N clients enter a normal communication flow.
Preferably, the RSSP-I protocol-based test method includes N test clients, and in the interference test step,
in the first test client, M test clients are selected from N communication test clients, injection interference is carried out on data messages sent by the test clients, the first test client can respond to fault injection tests of the M test clients, and the data communication process with other clients is kept unchanged
The advantages of the invention over the prior art are therefore: checking whether the protocol implementation meets the design requirements or not by analyzing the test process; in the test method, various fault modes in the protocol can be comprehensively simulated, and the processing process of the protocol in the test fault mode meets the requirements; the test method can simulate a multi-user use scene, realizes mutual communication among multiple clients, and meets the performance requirements by the detection protocol.
Drawings
The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the disclosure.
FIG. 1 illustrates a client-side process flow diagram in an embodiment of the invention;
FIG. 2 illustrates a data interaction diagram in an embodiment of the invention;
fig. 3 illustrates a data diagram after the main/standby switching in the embodiment of the present invention;
embodiments of the present invention will be described with reference to the accompanying drawings.
Detailed Description
Examples
In the test method, normal frames, frame repetition, frame insertion, frame loss, frame misordering and frame overtime in communication transmission can be simulated. By means of the conformance test of the protocol module, the conformity of the protocol implementation itself with the protocol specification can be checked.
In the test method, interference data can be injected into a source address, a destination address, a message type, a sequence number, a time stamp, a CRC check code and the like in a data frame. Through the robustness test of the protocol module, the capability of the protocol to operate under various severe environments can be detected.
In the test method, a single client can process the communication data of a plurality of clients at the same time, and the processing period of each client can be set to be different. Through the performance test of the protocol module, the performance indexes of the protocol implementation, such as execution speed, throughput and concurrency, can be detected.
RSSP-I protocol test, which consists of two or more test clients. The client calls the function interface provided by the RSSP-I protocol module to communicate with each other through UDP/IP.
When the test client is started, different types of test clients can be started according to the types of the starting parameters. Different types of test clients can realize different types of protocols at an application layer. And the test client encapsulates the protocol data of the application layer by calling an interface of the RSSP-I protocol module.
The test client can acquire the communication configuration parameters of the test client by loading the configuration file: SID, SINIT, DATAVER, local IP, other IP, communication port; acquiring configuration parameters of a communication opposite terminal: SID, SINIT, DATAVER, IP, Port.
After the test client is started, the self operation period value can be set, and the network data is received and processed in each self operation period. The test client can set a communication period with each communication opposite terminal, and in each communication period, network data is sent to the corresponding communication opposite terminal.
After the test client is started, if the activation state data message information of the master system is not received, the test client sets the test client as the master system, otherwise, the test client sets the test client as the backup system.
Fig. 1 is a flowchart of the client process of the present embodiment. The test client acquires data from the network interface in each operation period, and the data type comprises data synchronization information sent from the main system to the standby system in the system, activation state information sent from the main system to the standby system in the system and application information sent from other clients outside the system. And the test client sends the data to the communication opposite terminal in each communication period with the opposite terminal.
The verification test of the RSSP-I protocol may be performed by two different types of test clients communicating with each other. And starting the client of the corresponding type according to the starting parameters, calling a protocol initialization interface function by the test client, initializing the protocol, and acquiring corresponding security channel parameters such as SID, SINIT and DATAVER by the client after the initialization is successful.
Fig. 2 is an interaction diagram of two testing clients. After the two test clients are started, the two test clients are set to be in a master mode. After the initialization of the client communication interface is completed, the first testing client sends real-time security data (RSD) to the second testing client; the second testing client side calls a protocol analysis interface function to analyze the real-time safety data, when the protocol detects that the time sequence of the current safety data message exceeds a preset tolerance range, the second testing client side sends a time sequence correction request (SSE) message to the first testing client side; after receiving the time sequence correction request message, the first test client calls a protocol interface function to process and sends a time sequence correction response (SSR) message to the second test client; and after receiving the time sequence correction response message, the second test client calls a protocol interface function to process so as to obtain the latest communication time sequence. And then, the first test client periodically sends the real-time safety data, and the second test client periodically receives and processes the real-time safety data. The test client can display the received and sent data messages in real time.
In an initial state, the first test client periodically sends real-time safety data to the second test client, and the second test client periodically processes the received real-time safety data message. Then, in the first test client, injecting interference into the sent data message, and testing the robustness of the protocol module:
modifying SID or SINIT or DATAVRER of data sent by a first test client, and when a second test client receives a data message, checking a time sequence to be wrong, and considering the message as an invalid message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
Modifying the message type or source address or destination address of the data message sent by the first test client, and verifying the message error when the second test client receives the data message, wherein the message is an invalid message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
The method comprises the steps that data message simulation frame repeated data are sent from a first test client, and when a second test client receives repeated messages, the messages are not processed; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
The method comprises the steps that a data message sent by a first test client side is lost, and a second test client side cannot receive data message information at intervals of one period; and after the message is recovered to be normal, the second test client normally receives and processes the message.
The method comprises the steps that a data message simulation frame is sent in a first test client to be inserted, when a second test client receives the data message, timing sequence check is wrong, and the message is considered to be invalid; and the second testing client processes the subsequent messages according to the time sequence recovery flow.
And when the second test client receives the data message, if the serial number value of the error message is in a tolerance range, the error message is not processed, otherwise, the error message is processed according to a time sequence recovery flow.
The simulation of data message transmission in the first test client is overtime, and the second test client cannot receive data message information within a period of time; and if the message is recovered within the tolerance time range, the second testing client processes the subsequent message according to the correct time sequence, otherwise, the subsequent message is processed according to the time sequence recovery process.
The first test client simulates two channels to send data messages, the second test client displays that the same messages of the two channels are received, but the protocol processing module does not process repeated data messages.
In this embodiment, a dual client mode may be employed, as shown in fig. 3. And starting a second testing client terminal which is a backup system of the second testing client terminal. The second test client receives and processes the data sent by the client 1, but does not output the data to the outside; the second test client receives protocol synchronization data sent by the second test client; the second test client and the second test client 'are switched between the master system and the standby system, the second test client' is upgraded to the master system, and the second test client is downgraded to the standby system; the second testing client normally receives, processes and outputs the data sent by the first testing client, and the second testing client receives and processes the data sent by the client 1 but does not output the data.
Simulating the condition that 1 client communicates with N clients simultaneously, and testing the performance of the protocol module:
starting a first test client and N test clients communicating with the first test client, wherein the first test client sends data to the rest N test clients, and after the N clients receive the data, the data messages are subjected to time sequence verification, and a time sequence verification request message is sent to the client 1 after the verification fails; after receiving the time sequence correction request messages sent by the N clients, the client 1 sends time sequence correction response messages to the N clients; after N clients receive the time sequence correction response message, the latest communication time sequence is obtained; then client 1 enters normal communication flow with the remaining N clients.
In the first test client, M clients are selected from N communication clients, injection interference is carried out on data messages sent by the M clients, the first test client can respond to fault injection tests of the M clients, and the data communication process with other clients is kept unchanged.
Checking whether the protocol implementation meets the design requirements or not by analyzing the test process; in the test method, various fault modes in the protocol can be comprehensively simulated, and the processing process of the protocol in the test fault mode meets the requirements; the test method can simulate a multi-user use scene, realizes mutual communication among multiple clients, and meets the performance requirements by the detection protocol.
As can be seen from the above description, in the test method, it is possible to simulate a normal frame, a frame repetition, a frame insertion, a frame loss, a frame misordering, and a frame timeout in communication transmission. By means of the conformance test of the protocol module, the conformity of the protocol implementation itself with the protocol specification can be checked.
In the test method, interference data can be injected into a source address, a destination address, a message type, a sequence number, a time stamp, a CRC check code and the like in a data frame. Through the robustness test of the protocol module, the capability of the protocol to operate in various severe environments can be detected.
In the test method, a single client can process the communication data of a plurality of clients at the same time, and the processing period of each client can be set to be different. Through the performance test of the protocol module, the performance indexes of the protocol implementation, such as execution speed, throughput and concurrency, can be detected. In this embodiment, while, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as may be understood by those of ordinary skill in the art.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A testing method based on RSSP-I protocol is characterized by comprising the following steps:
the method comprises the steps of initialization, namely starting at least two client sides of types corresponding to starting parameters according to the starting parameters, testing the client sides to call a protocol initialization interface function, initializing a protocol, and after the initialization is successful, acquiring corresponding safe channel parameters and setting the client sides to be in a master mode by the client sides;
a time sequence correction step, wherein the first test client sends real-time safety data RSD to the second test client; the second testing client side calls a protocol analysis interface function to analyze the real-time safety data, and when the second testing client side detects that the time sequence of the current safety data message exceeds a preset tolerance range, the second testing client side sends a time sequence correction request message SSE to the first testing client side; after receiving the timing correction request message SSE, the first test client calls a protocol interface function to process and sends a timing correction response message SSR to the second test client; after receiving the timing correction response message SSR, the second test client calls a protocol interface function to process so as to obtain the latest communication timing sequence;
and an interference test step, namely injecting interference into the data message sent by at least one test end and testing the robustness of the protocol module.
2. The RSSP-I protocol-based test method of claim 1, wherein in said interference test step, SID or SINIT or DATAVRER of data sent in a first test client is modified, when a second test client receives a data message, a timing check error occurs, and the message is considered invalid; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
3. The RSSP-I protocol-based test method according to claim 1, wherein in the interference test step, the message type or source address or destination address of the data message sent by the first test client is modified, and when the second test client receives the data message, the message is verified to be an error, and the message is an invalid message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
4. The RSSP-I protocol-based test method according to claim 1, wherein in the interference test step, the first test client sends the data message to simulate frame repetition data, and the second test client does not process the message when receiving the repeated message; and if the time difference is recovered to the correct value within the tolerance time range, the second testing client processes the subsequent messages according to the correct time sequence, otherwise, the subsequent messages are processed according to the time sequence recovery process.
5. The RSSP-I protocol-based test method according to claim 1, wherein in the interference test step, the data packet simulation frame transmitted by the first test client is lost, and the second test client does not receive the data packet information at an interval of one period; and after the message is recovered to be normal, the second test client normally receives and processes the message.
6. The RSSP-I protocol-based test method according to claim 1, wherein in the interference test step, the first test client sends a data message analog frame insertion, and when the second test client receives the data message, the timing check is wrong, and the message is considered invalid; and the second testing client processes the subsequent messages according to the time sequence recovery flow.
7. The RSSP-I protocol-based test method according to claim 1, wherein in the interference test step, the first test client sends data packets to simulate frame misordering, and when the second test client receives data packets, if the sequence number of the misordered packets is within a tolerance range, the misordered packets are not processed, otherwise, the misordered packets are processed according to the timing recovery procedure.
8. The RSSP-I protocol based test method according to claim 1, wherein in the interference test step, the first test client sends the data message simulation timeout, and the second test client does not receive the data message information within a period of time; and if the message is recovered within the tolerance time range, the second testing client processes the subsequent message according to the correct time sequence, otherwise, the subsequent message is processed according to the time sequence recovery process.
9. The RSSP-I protocol-based test method as claimed in claim 1, comprising N test clients, wherein in the timing correction step, the first test client sends data to the remaining N test clients, and after receiving the data, the N test clients perform timing check on the data message, and after the check fails, send a timing check request message to the first test client; after receiving the time sequence correction request messages sent by the N clients, the first test client sends time sequence correction response messages to the N clients; after N clients receive the time sequence correction response message, the latest communication time sequence is obtained; and then the first test client and the rest N clients enter a normal communication flow.
10. A test method based on RSSP-I protocol according to claim 1, comprising N test clients, wherein in said interference test step,
in the first test client, M test clients are selected from the N communication test clients, injection interference is carried out on the data messages sent by the M test clients, the first test client can respond to fault injection tests of the M test clients, and the data communication process with other clients is kept unchanged.
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